Combined burglar-alarm and sash-lock.



' PATENTED OCT. 15, 1907.

J. W. CARPENTER. COMBINED BURGLAR ALARM AN D SASH LOCK.

APPL IOATION FILED III H1529, 1%06.

A TTORNE VS 0, WASHINGTON. n. c.

UNITED STATES PATENT oEEicE.

JOHN WESLEY CARPENTER, OF BRIDGEWATER, VIRGINIA.

COMBINED BURGLAR-ALARM AND SASH-LOCK.

To all whom it may concern:

Be it known that 1, JOHN \NESLEY CARPENTER, a citizen of the UnitedStates, residing at Bridgewater, in the county of Rockingham and Stateof Virginia, have invented a new and useful Combined Burglar- Alarm andSash-Lock, of which the following is a specification.

This invention relates to combined window sash fasteners and burglaralarms.

The object of the invention is to provide means for locking the windowin partially opened position thereby to permit ventilation of the room,and means for sounding the alarm should an attempt be made by anunauthorized person to enter the room by raising or lowering the sashwhen the locking member or fastener is moved to inoperative position.

A further object of the invention is to generally improve this class ofdevices so as to increase their utility, durability and efliciency aswell as to reduce the cost of manufacture.

With these and other objects in view the invention consists in theconstruction and novel combination and arrangement of parts hereinafterfully described, and illustrated in the accompanying drawings, it beingunderstood that various changes in form, proportions and minor detailsof construction may be resorted to within the scope of the appendedclaims.

In the accompanying drawings forming a part of this specification:Figure 1 is a perspective view of a portion of. a window provided with acombined sash-fastening and burglar alarm constructed in accordance withmy invention. Fig. 2 is a top plan view of the alarm or bell with thecover removed. Fig. 3 is a side elevation showing the position of thepivoted trip when the sashes operated.

Similar numerals of reference indicate corresponding parts in all of thefigures of the drawings.

The improved device is principally designed for use on sliding closuressuch as window sashes, transoms and the like and by way of illustrationis shown in connection with a window of the ordinary construction inwhich 5 designates the lower sash and G the upper sash slidably mountedin the frame or casing 7, as shown. Secured to the parting rail 8 of thelower sash 5 is an alarm preferably in the form of a bell 9 the base ofwhich is provided with a depending attaching bracket 10 adapted to besecured to the upper face of the parting rail in any suitable manner asby screws or similar fastening devices 11. The bell is provided with theusual pivoted actuating lever 12 and hammer 13, there being a spring 14secured to the lever for returning the latter tonormal position aftereach movement of the same. The lever 12 is extended beyond the pivotpoint 15 and is provided with a pair of spaced Specification of LettersPatent.

Application filed June 29, 1906. Serial No. 324,067.

Patented. Oct. 15, 1907.

depending ears 16 between which is pivotally mounted a rod or trip 17adapted to engage an actuating member 18 carried by the upper sash 6.The actuating member 18 is secured to one of the vertical rails of theupper sash and consists of a plate provided with an angular extension 19having an inclined or cam face 20 adapted to engage the trip 17 wheneither sash is moved to open or partially open position and sound thealarm.

As a means for locking either sash in partially open position thereby topermit ventilation of the room there is provided a locking member 21pivoted at 22 above the actuating member 18 and having its free endprovided with an inclined face 23 defining a depending lip 24 adapted toengage the parting rail 8 of the lower sash and thereby prevent furthermovement of said sashes The lip 24 extends in the path of movement ofthe lower sash 5 and is provided with a shoulder 25 which bears againstthe actuating member 18 and serves to limit the lateral movement of saidlocking member.

Attention is called to the fact that the short end of the rod or trip 17normally bears against the bottom of the lever 12 thereby to hold thetrip rigid and in alinement with the lever when said trip is moved inengagement with the inclined face 20 so that the lever will be movedlaterally on the upward movement of the lower sash, the pivotalconnection between the lever and the trip permitting the latter to moveto the position shown in Fig. 3 of the drawings when the sash islowered.

The actuating member 18 is preferably disposed a short distance abovethe parting rail 8 so as to permit either sash to be moved to partiallyopen. position thereby to permit ventilation of the room withoutactuating the alarm.

When the locking member 21 is moved to inoperative position, asindicated by dotted lines in Fig. 1. of the drawing, an attempt by anunauthorized person to open the window and obtain access to the interiorof the room will cause the trip 17 to engage the inclined face 20 of theactuating member and move the lever 12 laterally against the tension ofthe spring 14 so that when the trip clears the upper end of said memberthe spring will return the lever to normal position and thereby soundthe alarm. When the sash is lowered the trip 17 will engage the top ofthe actuating member thereby tilting the same and permitting the sash tobe readily lowered without sounding the alarm.

When it is desired to lock either sash in open or partially openposition the locking member 21 is moved downwardly in engagement withthe actuating member 18 thereby causing the lip 24 to extend in the pathof movement of the lower sash and limit the upward movement of the same.

From the foregoing description it will be seen that there is provided anextremely simple, inexpensive and efficient device admirably adapted forthe attainment of the ends in View.

Having thus described the invention what is claimed is:

1. The combination with a pair of sliding sashes, of an actuating membersecured to one of said sashes and provided with an inclined face, analarm secured to the adjacent sash and provided with an operating lever,and a trip pivotally mounted on said lever and adapted to engage theinclined face of the actuating member thereby to sound the alarm, saidtrip being locl ed against tilting movement in one direction and free totilt in the opposite direction 2. The combination with a pair of slidingsashes, of an actuating member secured to one of the 'sashesand providedwith an inclined face, an alarm secured to the adjacent sash andprovided with an operating; lever the free end of which is bifurcated toform a pair of depending ears, and a trip pivotally mounted between saidears and adapted to engage the inclined face of the actuating member forsounding the alarm, said trip being free to move in one direction andlocked against movement in the oppo site direction.

3. The combination with a pair of sliding sashes, of an actuating membersecured to one of said sashes and provided with an inclined face, analarm secured to the ad jacent sash and provided with a pivotedoperating lever the free end of which is bifurcated to form a pair ofspaced depending ears, and a trip pivotally mounted between said earsand having its short end normally bearing against the lever for lockingthe trip against movement in one direction, the free end said trip beingextended in the path ofmoveinent of the actuating member thereby tooperate the lever and sound the alarm.

4. The combination with a pair of sliding sashes, of an actuating membersecured to one of said sashes and pro vided with an inclined face, of analarm secured to the ad' jacent sash and provided with a pivoted tripadapted to engage the inclined face of the actuating member for soundingthe alarm, said trip being free to tilt in one direction and lockedagainst tilting movement in the opposite direction, and a locking memberpivotally mounted on one of the sashes and movable to operative positionin the path of movement of the adjacent sash.

5. The combination with a pair of sliding sashes, of an actuating membersecured to one of tlie sashes and provided with an inclined face, analarm carried by the adjacent sash and provided with a pivoted tripadapted to engage the inclined face of the actuating member for soundingthe alarm, said trip being free to tilt in one direction and lockedagainst tilting movement in the opposite direction, and a locking memberpivotally mounted on one of said sashes and provided with a lipextending in the" path of movement of the lower sash and defining ashoulder adapted to bear against the actuating member.

In testimony that I claim the foregoing as my own, I have hereto aiiixedmy signature in the presence of two witnesses.

JQIIN WESLEY CARPENTER.

Witnesses S. H. W. Brno, G. TI. "YNAXL.

